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From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
Focal nodular hyperplasia (FNH) is a benign liver lesion that is composed of a proliferation of hyperplastic hepatocytes surrounding a central stellate scar. Typically, FNH is a solitary lesion that is more commonly seen in women.
Biological protein and molecule, 3d rendering. 3D illustration.
A conceptual image of an abstract network of multi-coloured organic strands arranged in a non regular pattern all connected together in a complex manner. The network is made from smaller multi-coloured squares and polyhedra, in vivid colours against a pastel toned background. Shows background and foreground elements to the structure.
Bronchitis and alveolitis in lung of horse infected with equine influenza virus, 200x magnification.
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Stem of Nerium indicum T.S. under light mircoscope with white background
Lily leaf c.s. under microscope
Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, blue
Acetylcholine receptors in the lipid layer of cell membrane.
Intricate bubble texture macro in bright colors for abstract background. Liquid bubbles lit from below with colors injected into the liquid as a design or art abstract.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Laser shot through skin cell layer, skin and Facial treatment. 3D rendering.
Photomicrograph of flatworm,
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Micrograph of Invasive urothelial carcinoma high grade. Invasive urothelial carcinoma is a type of Transitional cell carcinoma (TCC, also urothelial cell carcinoma or UCC) and is a type of cancer that develops in the urinary system: the kidney, urinary bladder, and accessory organs. It is the most common type of bladder cancer and cancer of the ureter, urethra, and urachus. Invasive urothelial carcinoma originates from tissue lining the inner surface of these hollow organs - transitional epithelium. It can extend from the kidney collecting system to the bladder. H&E Stain
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Liver Fluke Section under light microscope with white background
After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
Slice of natural crystal for patterns and textures use with high resolution.
Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.
Computer generated abstract concept image of 3d spheres like metaphor of abstract business processes.
SARS-CoV-2 ORF3a is a putative viral ion channel implicated in autophagy inhibition, inflammasome activation and apoptosis. 3D cartoon and Gaussian surface models, based on PDB 7kjr, white background.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Free Images: "bestof:PDB 1ysi EBI.jpg Membrane and cell surface proteins and peptides Toxins membrane translocation domains Bcl-2 inhibitors of programmed cell death Bcl-2"
Insulin glucose metabolism ZP.svg
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CD8 receptor.svg
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Lipid raft organisation scheme.svg
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Bacteria.svg
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Euglenid pellicula scheme.svg
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PEM fuel cell.svg
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Diagram human cell nucleus numbered version.svg
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Frap diagram.svg
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Supported bilayer.svg
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Prokaryote cell diagram international.svg
Fagocytoza.svg
Black lipid membrane.svg
Animal Cell.svg
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Plant cell wall nl.svg
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Lipid unsaturation effect.svg
Lipid vesicle vs soap bubble.svg
Lipid bilayer fusion.svg
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Pore schematic.svg
Lipid unsaturation effect pt.svg
Mauthner Cell axon cap schematic.svg
Osmotic pressure on blood cells diagram.svg
Canais.svg
Scheme secundary active transport-en.svg
Desmosome cell junction it.svg
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Lipid unsaturation effect es.svg
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Animal mitochondrion diagram it.svg
Schema pflanzliche Zellwand.svg
Plant cell wall diagram mk.svg
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Semnalizare engl.svg
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Hepatitis B virus v2.svg
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